How to Replace the Inlet Valve
The inlet valve connects the hot and cold water from your home to the back of the washer. The valve solenoids on the valve open one or both valves to provide the proper water temperature for the wash cycle. If the valves are blocked or the solenoids do not activate, the symptoms may include no water, low water pressure, the wrong water temperature or water entering the tub even when the machine is off.
The water inlet valve can be identified by the water hoses connected to it at the back of the washer. Start by turning off the water supply at the valves on the wall. Disconnect both hoses from the back of the washer. Inspect the hose connections on both hoses for debris build up in the filter screens. If you find any debris, clean it out.
Access to the valve may be easiest by opening the top or back of the washer, depending upon make and model. On some models you may be able to extract the valve from the outside through the mounting opening.
There are two wires connected to each solenoid (aka coil) on the water inlet valve. Label the wires and connections so that you can properly reconnect them later. The wires are connected with slip on connectors. Firmly pull the connectors off of the terminals (do not pull on the wire itself). You may need to use a pair of needle-nose pliers to remove the connectors. Inspect the connectors and the terminals for corrosion. If either is corroded they should be cleaned or replaced.
The valve is fastened to the chassis by two screws typically. Remove the screws and remove the valve. The water line from the valve to the fill spout is fastened to the valve with a slip on hose and may also be secured by a pinch or screw clamp. Loosen the clamp by pinching the two prongs with a pair of pliers or turning the screw in the case of a screw clamp.
Connect the water line to the new inlet valve and refasten the valve in place. Reconnect the water supply lines and turn on the water. Check for leaks and then plug in the washer and test the new valve.